Hello Till,

Is there any “evidence” of what could be happening either in /var/log/messages 
(or syslog), dmesg ?
Any way you can strace the dhcpd process and see if you can find something ?

Is the PacketFence server in production or only in tests ? Any large network(s) 
provisionned by the PacketFence dhcpd service ? (registration, isolation)

Any “evident” errors / warnings in the packetfence.log ?

What is the result of select count(ip) from iplog_history on the PacketFence 
database ?

Cheers!
-dw.

—
Derek Wuelfrath
dwuelfr...@inverse.ca :: +1.514.447.4918 (x110) :: +1.866.353.6153 (x110)
Inverse inc. :: Leaders behind SOGo (www.sogo.nu) and PacketFence 
(www.packetfence.org)

> On Apr 25, 2016, at 14:51, Till Wimmer <t.wim...@tonarchiv.ch> wrote:
> 
> Hello Derek,
> 
> sadly, it was not the timezone setting. After runing for almost a day,
> the problem did come back. Average sytem load is 1.34, Dhcpd is running
> 100% of one CPU.
> 
> Cheers,
> Till
> 
> On 04/25/2016 03:17 PM, Derek Wuelfrath wrote:
>> Hello Till,
>> 
>>> But meanwhile I think that I have found the real reason: The timezone in
>>> PF was set wrong.
>>> So maybe there was some confusion with the lease times because of this. 
>>> Now, after setting it right, the lease file also looks fine to me.
>> Have you reenable OMAPI after changing the timezone ? :)
>> 
>> It seems a bit strange to me since [general.timezone] PacketFence 
>> configuration parameter is not really used in “that workflow”.
>> 
>> Cheers!
>> -dw.
>> 
>> —
>> Derek Wuelfrath
>> dwuelfr...@inverse.ca :: +1.514.447.4918 (x110) :: +1.866.353.6153 (x110)
>> Inverse inc. :: Leaders behind SOGo (www.sogo.nu) and PacketFence 
>> (www.packetfence.org)
>> 
>>> On Apr 25, 2016, at 05:16, g4-l...@tonarchiv.ch wrote:
>>> 
>>> Hi MJ,
>>> 
>>> yes, diasbling OMAPI solved the issue...
>>> 
>>> But meanwhile I think that I have found the real reason: The timezone in
>>> PF was set wrong.
>>> So maybe there was some confusion with the lease times because of this. 
>>> Now, after setting it right, the lease file also looks fine to me.
>>> 
>>> Cheers,
>>> Till
>>> 
>>> On 04/24/2016 10:41 PM, mj wrote:
>>>> try disabling omapi for dhcp.
>>>> 
>>>> MJ
>>>> 
>>>> On 04/24/2016 08:12 PM, g4-l...@tonarchiv.ch wrote:
>>>>> Hi there!
>>>>> 
>>>>> I set up a PF 6 in inline configuration for testing on Debian 7.
>>>>> There is nothing going on on the WLAN - no registered nodes yet.
>>>>> But after a few hours dhcpd took 100% of one CPU. After restarting dhcpd
>>>>> the load went back to normal. Then, a few hours later, the same story...
>>>>> 
>>>>> I had a look in the leases file... and there something looks strange to
>>>>> me. There are overlapping leases:
>>>>> 
>>>>> lease 192.168.3.10 {
>>>>>  starts 0 2016/04/24 17:26:23;
>>>>>  ends 1 2016/04/25 17:26:23;
>>>>>  cltt 0 2016/04/24 17:26:23;
>>>>>  binding state active;
>>>>>  next binding state free;
>>>>>  rewind binding state free;
>>>>>  hardware ethernet e0:f8:47:aa:bb:cc;
>>>>>  uid "\001\340\370G\212\0112";
>>>>>  client-hostname "iPhone";
>>>>> }
>>>>> server-duid "\000\001\000\001\036\254\321$\010\000'\377ds";
>>>>> 
>>>>> lease 192.168.3.10 {
>>>>>  starts 0 2016/04/24 17:41:23;
>>>>>  ends 1 2016/04/25 17:41:23;
>>>>>  cltt 0 2016/04/24 17:41:23;
>>>>>  binding state active;
>>>>>  next binding state free;
>>>>>  rewind binding state free;
>>>>>  hardware ethernet e0:f8:47:aa:bb:cc;
>>>>>  uid "\001\340\370G\212\0112";
>>>>>  client-hostname "iPhone";
>>>>> }
>>>>> lease 192.168.3.10 {
>>>>>  starts 0 2016/04/24 17:56:19;
>>>>>  ends 1 2016/04/25 17:56:19;
>>>>>  cltt 0 2016/04/24 17:56:19;
>>>>>  binding state active;
>>>>>  next binding state free;
>>>>>  rewind binding state free;
>>>>>  hardware ethernet e0:f8:47:aa:bb:cc;
>>>>>  uid "\001\340\370G\212\0112";
>>>>>  client-hostname "iPhone";
>>>>> }
>>>>> 
>>>>> Is there maybe a bug in the PF OMAPI part?
>>>>> 
>>>>> Cheers,
>>>>> Till
> 
> 
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